Set the requester context info to the requests for off-main-thread-fetch.

content/renderer/service_worker/worker_fetch_context_impl.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_SERVICE_WORKER_WORKER_FETCH_CONTEXT_IMPL_H_
 #define CONTENT_RENDERER_SERVICE_WORKER_WORKER_FETCH_CONTEXT_IMPL_H_
 
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/common/worker_url_loader_factory_provider.mojom.h"
 #include "ipc/ipc_message.h"
 #include "mojo/public/cpp/bindings/associated_binding.h"
 #include "third_party/WebKit/public/platform/WebWorkerFetchContext.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace content {
 
 class ResourceDispatcher;
 
+// This class is used while fetching resource requests on workers (dedicated
+// worker and shared worker) when off-main-thread-fetch is enabled. This class
+// is created on the main thread and passed to the worker thread.

[falken, 2017/05/18 02:14:13]

Can you add "This class is not used for service workers. For service workers,
XXX class is used instead"?

Does it make sense for this class to be in content/renderer/service_worker/?
Should it be in content/renderer/ instead?

[horo, 2017/05/18 03:59:53]

Done.
Humm... This class inherits mojom::ServiceWorkerWorkerClient to receive
SetControllerServiceWorker() IPC.
So, it is OK to be here...
But yes, I think it is also OK to be in content/renderer/.
I don't have a strong opinion about it.

 class WorkerFetchContextImpl : public blink::WebWorkerFetchContext,
                                public mojom::ServiceWorkerWorkerClient {
  public:
   explicit WorkerFetchContextImpl(
       mojom::WorkerURLLoaderFactoryProviderPtrInfo provider_info);
   ~WorkerFetchContextImpl() override;
 
   // blink::WebWorkerFetchContext implementation:
   void InitializeOnWorkerThread(base::SingleThreadTaskRunner*) override;
   std::unique_ptr<blink::WebURLLoader> CreateURLLoader() override;
   void WillSendRequest(blink::WebURLRequest&) override;
   bool IsControlledByServiceWorker() const override;
   void SetDataSaverEnabled(bool) override;
   bool IsDataSaverEnabled() const override;
 
   // mojom::ServiceWorkerWorkerClient implementation:
   void SetControllerServiceWorker(int64_t controller_version_id) override;
 
-  // Sets the service worker status of the parent frame.
+  // Sets the fetch context status copied from the frame; the parent frame for a
+  // dedicated worker, the main frame of the shadow page for a shared worker.
   void set_service_worker_provider_id(int id);
   void set_is_controlled_by_service_worker(bool flag);
   void set_parent_frame_id(int id);
+  // Set whether the worker context is a secure context.
+  // https://www.w3.org/TR/secure-contexts/

[falken, 2017/05/18 02:14:13]

https://w3c.github.io/webappsec-secure-contexts/ is better, TR links tend to get
outdated

[horo, 2017/05/18 03:59:53]

Done.

+  void set_is_secure_context(bool flag);
 
  private:
   mojom::WorkerURLLoaderFactoryProviderPtrInfo provider_info_;
   int service_worker_provider_id_ = kInvalidServiceWorkerProviderId;
   bool is_controlled_by_service_worker_ = false;
 
   // Initialized on the worker thread when InitializeOnWorkerThread() is called.
   std::unique_ptr<ResourceDispatcher> resource_dispatcher_;
   std::unique_ptr<mojo::AssociatedBinding<mojom::ServiceWorkerWorkerClient>>
       binding_;
   mojom::WorkerURLLoaderFactoryProviderPtr provider_;
   mojom::URLLoaderFactoryAssociatedPtr url_loader_factory_;
 
   // Updated when mojom::ServiceWorkerWorkerClient::SetControllerServiceWorker()
   // is called from the browser process via mojo IPC.
   int controller_version_id_ = kInvalidServiceWorkerVersionId;
 
   bool is_data_saver_enabled_ = false;
   int parent_frame_id_ = MSG_ROUTING_NONE;
+  bool is_secure_context_ = false;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_SERVICE_WORKER_WORKER_FETCH_CONTEXT_IMPL_H_